#include <stdio.h>
#include <unistd.h>
#include <string.h>

int main()
{
    const char*message0="xiaowang pritnf\n";
    const char*message1="xiwowang fwrite\n";
    const char*message2="xiwowang write\n";
    printf("%s",message0);

    fwrite(message1,strlen(message1),1,stdout);

    write(1,message2,strlen(message2));

    fork();
    return 0;
}
